b27257fadb
Enables tracking of activity launch throughout the whole process, so that the shell can be aware of the activity ID from the moment the activity is started by the shell, until the activity becomes active. Previously, the activity itself generated its own ID and told the shell what it was.
297 lines
10 KiB
Python
297 lines
10 KiB
Python
# Copyright (C) 2006, Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import logging
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import gtk
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import gobject
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import wnck
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import dbus
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import view.stylesheet
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from sugar.graphics import style
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from view.home.HomeWindow import HomeWindow
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from sugar.presence import PresenceService
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from view.ActivityHost import ActivityHost
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from sugar.activity import ActivityFactory
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from sugar.activity import Activity
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from view.frame.Frame import Frame
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from view.dconmanager import DCONManager
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from _sugar import KeyGrabber
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from _sugar import AudioManager
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import sugar
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class Shell(gobject.GObject):
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def __init__(self, model):
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gobject.GObject.__init__(self)
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self._model = model
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self._hosts = {}
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self._screen = wnck.screen_get_default()
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self._current_host = None
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style.load_stylesheet(view.stylesheet)
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self._dcon_manager = DCONManager()
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self._audio_manager = AudioManager()
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self._key_grabber = KeyGrabber()
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self._key_grabber.connect('key-pressed',
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self._key_pressed_cb)
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self._key_grabber.connect('key-released',
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self._key_released_cb)
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self._grab_keys()
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self._home_window = HomeWindow(self)
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self._home_window.show()
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self.set_zoom_level(sugar.ZOOM_HOME)
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home_model = self._model.get_home()
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home_model.connect('activity-added', self._activity_added_cb)
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home_model.connect('activity-removed', self._activity_removed_cb)
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home_model.connect('active-activity-changed',
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self._active_activity_changed_cb)
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self._frame = Frame(self)
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self._frame.show_and_hide(3)
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self._pservice = PresenceService.get_instance()
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#self.start_activity('org.laptop.JournalActivity')
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def _handle_camera_key(self):
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if self._current_host:
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if self._current_host.execute('camera', []):
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return
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self.start_activity('org.laptop.CameraActivity')
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def _grab_keys(self):
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self._key_grabber.grab('F1')
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self._key_grabber.grab('F2')
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self._key_grabber.grab('F3')
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self._key_grabber.grab('F4')
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self._key_grabber.grab('F5')
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self._key_grabber.grab('F6')
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self._key_grabber.grab('F7')
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self._key_grabber.grab('F8')
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self._key_grabber.grab('F9')
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self._key_grabber.grab('F10')
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self._key_grabber.grab('F11')
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self._key_grabber.grab('F12')
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self._key_grabber.grab('<alt>F5')
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self._key_grabber.grab('<alt>F8')
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self._key_grabber.grab('0xDC') # Camera key
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self._key_grabber.grab('0xE0') # Overlay key
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self._key_grabber.grab('0x93') # Frame key
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self._key_grabber.grab('0x7C') # Power key
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self._key_grabber.grab('<alt>Tab')
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# For non-OLPC machines
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self._key_grabber.grab('<shft><alt>F9')
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self._key_grabber.grab('<shft><alt>F10')
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def _key_pressed_cb(self, grabber, key):
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if key == 'F1':
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self.set_zoom_level(sugar.ZOOM_MESH)
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elif key == 'F2':
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self.set_zoom_level(sugar.ZOOM_FRIENDS)
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elif key == 'F3':
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self.set_zoom_level(sugar.ZOOM_HOME)
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elif key == 'F4':
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self.set_zoom_level(sugar.ZOOM_ACTIVITY)
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elif key == 'F5':
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self._dcon_manager.set_brightness(0)
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elif key == 'F6':
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self._dcon_manager.set_brightness(5)
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elif key == 'F7':
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self._dcon_manager.set_brightness(9)
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elif key == 'F8':
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self._dcon_manager.set_brightness(15)
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elif key == 'F9':
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self._audio_manager.set_volume(0)
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elif key == 'F10':
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self._audio_manager.set_volume(32)
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elif key == 'F11':
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self._audio_manager.set_volume(64)
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elif key == 'F12':
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self._audio_manager.set_volume(100)
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elif key == '<alt>F5':
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self._dcon_manager.set_mode(DCONManager.COLOR_MODE)
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elif key == '<alt>F8':
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self._dcon_manager.set_mode(DCONManager.BLACK_AND_WHITE_MODE)
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elif key == '<shft><alt>F9':
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self._frame.notify_key_press()
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elif key == '<shft><alt>F10':
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self.toggle_chat_visibility()
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elif key == '0xDC': # Camera key
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self._handle_camera_key()
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elif key == '0xE0': # Overlay key
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self.toggle_chat_visibility()
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elif key == '0x93': # Frame key
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self._frame.notify_key_press()
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elif key == '0x7C': # Power key
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self._shutdown()
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elif key == '<alt>Tab':
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self.set_zoom_level(sugar.ZOOM_HOME)
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box = self._home_window.get_home_box()
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box.grab_and_rotate()
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def _shutdown(self):
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bus = dbus.SystemBus()
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proxy = bus.get_object('org.freedesktop.Hal',
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'/org/freedesktop/Hal/devices/computer')
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mgr = dbus.Interface(proxy, 'org.freedesktop.Hal.Device.SystemPowerManagement')
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mgr.Shutdown()
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def _key_released_cb(self, grabber, key):
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if key == '<shft><alt>F9':
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self._frame.notify_key_release()
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elif key == '0x93':
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self._frame.notify_key_release()
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def _activity_added_cb(self, home_model, home_activity):
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activity_host = ActivityHost(home_activity)
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self._hosts[activity_host.get_xid()] = activity_host
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def _activity_removed_cb(self, home_model, home_activity):
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xid = home_activity.get_xid()
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if self._hosts.has_key(xid):
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self._hosts[xid].destroy()
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del self._hosts[xid]
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def _active_activity_changed_cb(self, home_model, home_activity):
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if home_activity:
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host = self._hosts[home_activity.get_xid()]
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else:
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host = None
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if self._current_host:
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self._current_host.set_active(False)
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self._current_host = host
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if self._current_host:
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self._current_host.set_active(True)
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def get_model(self):
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return self._model
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def join_activity(self, bundle_id, activity_id):
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activity = self.get_activity(activity_id)
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if activity:
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activity.present()
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else:
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activity_ps = self._pservice.get_activity(activity_id)
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if activity_ps:
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# Get the service name for this activity, if
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# we have a bundle on the system capable of handling
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# this activity type
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breg = self._model.get_bundle_registry()
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bundle = breg.find_by_default_type(bundle_id)
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if bundle:
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serv_name = bundle.get_service_name()
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try:
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activity = ActivityFactory.create(serv_name)
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except DBusException, e:
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logging.error("Couldn't launch activity %s:\n%s" % (serv_name, e))
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else:
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logging.debug("Joining activity type %s id %s" % (serv_name, activity_id))
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activity.join(activity_ps.object_path())
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else:
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logging.error("Couldn't find activity for type %s" % bundle_id)
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else:
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logging.error('Cannot start activity.')
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def _find_unique_activity_id(self):
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# create a new unique activity ID
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i = 0
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act_id = None
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while i < 10:
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act_id = sugar.util.unique_id()
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i += 1
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# check through existing activities
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found = False
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for xid, act_host in self._hosts.items():
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if act_host.get_id() == act_id:
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found = True
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break
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if found:
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act_id = None
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continue
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# check through network activities
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activities = self._pservice.get_activities()
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for act in activities:
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if act_id == act.get_id():
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found = True
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break
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if found:
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act_id = None
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continue
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return act_id
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def start_activity(self, activity_type):
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logging.debug('Shell.start_activity')
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act_id = self._find_unique_activity_id()
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if not act_id:
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logging.error("Couldn't find available activity ID.")
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return None
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try:
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logging.debug("Shell.start_activity will start %s:%s" % (activity_type, act_id))
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activity = ActivityFactory.create(activity_type)
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except dbus.DBusException, e:
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logging.debug("Couldn't start activity '%s':\n %s" % (activity_type, e))
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return None
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activity.start(act_id)
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return activity
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def set_zoom_level(self, level):
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if level == sugar.ZOOM_ACTIVITY:
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self._screen.toggle_showing_desktop(False)
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else:
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self._screen.toggle_showing_desktop(True)
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self._home_window.set_zoom_level(level)
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def get_current_activity(self):
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return self._current_host
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def get_activity(self, activity_id):
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for host in self._hosts.values():
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if host.get_id() == activity_id:
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return host
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return None
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def toggle_chat_visibility(self):
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act = self.get_current_activity()
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if not act:
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return
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is_visible = self._frame.is_visible()
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if act.is_chat_visible():
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frame_was_visible = act.chat_hide()
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if not frame_was_visible:
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self._frame.do_slide_out()
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else:
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if not is_visible:
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self._frame.do_slide_in()
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act.chat_show(is_visible)
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